Compatible with 35 mm Full Frame, or APS-C format A-mount cameras. | Small size, light weight telephoto zoom lens. Circular Aperture | 35mm focal length equivelant; 82.5-300mm | Smooth and silent AF operation with built-in motor (SAM) | Closest focus distance: 0.95m; Maximum magnification: 0.29x | Please note: DT lenses are not recommended for use with the DSLR-A900